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Expired Canadian patentCanada

Multiaxis redundant fly-by-wire primary flight control system

CA 2095616 C · Owner: The Boeing Company · Inventors: Buus, Henning

CIPO record

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Abstract From the Canadian patent

A redundant, multi-channel fly-by-wire control system for use in an aircraft is, disclosed. The system includes a left flight control channel (60) a center , flight, control channel (80) and a right flight control channel (90). Each control channel is, capable of flying the aircraft in the event the other two channels fail. Included within, each control channel is an actuator controller electronics unit (ACE (62 82, 92)), which transmits a series of pilot control transducer signals to a set of primary flight, computers (64, 84, and 94). The primary flight computers combine the pilot control, transducer signals with data obtained from an air data and inertial reference unit (145), to …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed May 5, 1993 and granted November 26, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 5, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 5, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 5, 1993
GrantedNovember 26, 2002
Term endedMay 5, 2013
Patent numberCA 2095616 C
Classification (IPC)G08G5/00 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMay 5, 1993Patent grantedNov 26, 2002Term endedMay 5, 2013

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.